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Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2 questions · 2 findings · 1 reviews · Consumers and Communication

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 2 · 100%Moderate 0 · 0%High 0 · 0%

Intervention not reported

Rate of participation [case notes or questionnaire, measured immediately or up to four weeks post‐intervention] · people with a health condition (or pregnant) considering real clinical trial participation (across a range of topic areas)

The intervention may leads to lower rate of participation [case notes or questionnaire, measured… (low certainty).

1 finding from 1 review

Intervention not reported

Rate of participation [case notes, measured immediately post‐intervention] · people with a health condition or nominally 'well' considering real or hypothetical clinical trial participation in cancer or psychiatric…

The intervention showed no clear difference in rate of participation [case notes, measured immediately… (low certainty).

1 finding from 1 review